file_existence.js

import assert from 'assert';
import fs from 'fs';
import path from 'path';
import glob from 'glob';

import pkg  from './../package.json';

const dirs = pkg['h5bp-configs'].directories;

const expectedFilesInArchiveDir = [
  `${pkg.name}_v${pkg.version}.zip`
];

const expectedFilesInDistDir = [

  '.editorconfig',
  '.gitattributes',
  '.gitignore',
  '.htaccess',
  '404.html',
  'package.json',
  'browserconfig.xml',

  'css/', // for directories, a `/` character
  // should be included at the end
  'css/normalize.css',
  'css/style.css',

  'doc/',
  'doc/TOC.md',
  'doc/css.md',
  'doc/extend.md',
  'doc/faq.md',
  'doc/html.md',
  'doc/js.md',
  'doc/misc.md',
  'doc/usage.md',

  'favicon.ico',
  'humans.txt',

  'icon.png',

  'img/',
  'img/.gitignore',

  'index.html',

  'js/',
  'js/app.js',
  'js/plugins.js',
  'js/vendor/',
  `js/vendor/modernizr-${pkg.devDependencies.modernizr}.min.js`,

  'LICENSE.txt',
  'robots.txt',
  'site.webmanifest',
  'tile-wide.png',
  'tile.png'

];

// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

function checkFiles(directory, expectedFiles) {

  // Get the list of files from the specified directory
  const files = glob.sync('**/*', {
    'cwd': directory,
    'ignore': [
      '**/node_modules/**',
      'package-lock.json',
      '**/dist/**',
      '**/.cache/**',
    ],
    'dot': true,      // include hidden files
    'mark': true      // add a `/` character to directory matches
  });

  // Check if all expected files are present in the
  // specified directory, and are of the expected type
  expectedFiles.forEach((file) => {

    let ok = false;
    const expectedFileType = (file.slice(-1) !== '/' ? 'regular file' : 'directory');

    // If file exists
    if (files.indexOf(file) !== -1) {

      // Check if the file is of the correct type
      if (file.slice(-1) !== '/') {
        // Check if the file is really a regular file
        ok = fs.statSync(path.resolve(directory, file)).isFile();
      } else {
        // Check if the file is a directory
        // (Since glob adds the `/` character to directory matches,
        // we can simply check if the `/` character is present)
        ok = (files[files.indexOf(file)].slice(-1) === '/');
      }

    }

    it(`"${file}" should be present and it should be a ${expectedFileType}`, () =>{
      assert.equal(true, ok);
    });

  });

  // List all files that should be NOT
  // be present in the specified directory
  (files.filter((file) => {
    return expectedFiles.indexOf(file) === -1;
  })).forEach((file) => {
    it(`"${file}" should NOT be present`, () => {
      assert(false);
    });
  });

}

// - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

function runTests() {

  describe('Test if all the expected files, and only them, are present in the build directories', () => {

    describe(dirs.archive, () => {
      checkFiles(dirs.archive, expectedFilesInArchiveDir);
    });

    describe(dirs.dist, () => {
      checkFiles(dirs.dist, expectedFilesInDistDir);
    });

  });

}

runTests();